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1. 发明授权

US5856374A Curable composition 失效
标题翻译：可固化组合物
公开(公告)号：US5856374A
公开(公告)日：1999-01-05
申请号：US962035
申请日：1997-10-31
申请人： Toru Ono , Masatugu Kusano , Masataka Himeno , Shigeki Yuasa
发明人： Toru Ono , Masatugu Kusano , Masataka Himeno , Shigeki Yuasa
IPC分类号： A61K6/08 , A61K6/083 , C08K3/22 , C08K3/34 , C08K3/36
CPC分类号： A61K6/083
摘要： A curable composition comprising (i) a polymerizable monomer, (ii) irregular-shaped inorganic particles (A) having an average particle diameter of from 1 to 9 .mu.m, and containing particles having particle diameters of not smaller than 10 .mu.m in an amount of not larger than 3% by weight, such as silica-zirconia irregular-shaped particles, (iii) spherical inorganic particles (B) having an average particle diameter of from 0.1 to 5 .mu.m, such as spherical silica-zirconia particles; (iv) inorganic fine particles (C) having an average particle diameter of from 0.01 to 0.1 .mu.m, such as fine particles of at least one inorganic oxide selected from the group consisting of silica, alumina, silica-zirconia and silica-titania; and (v) a polymerization initiator; wherein the irregular-shaped inorganic particles (A), spherical inorganic particles (B) and inorganic fine particles (C) are used in a total amount of from 300 to 1900 parts by weight per 100 parts by weight of the polymerizable monomer, and, when the total amount of the spherical inorganic particles (B) and the inorganic fine particles (C) is set to be 100% by weight, the spherical inorganic particles (B) are used at a ratio of from 50 to 99% by weight and the inorganic fine particles (C) are used at a ratio of from 50 to 1% by weight, and wherein the weight ratio �(A)/{(B)+(C)}! of the irregular-shaped inorganic particles (A) to the total amount of the spherical inorganic particles (B) and the inorganic fine particles (C) is from 0.3 to 3, and the polymerization initiator is used in an amount of from 0.01 to 5 parts by weight per 100 parts by weight of the polymerizable monomer.
摘要翻译：一种可固化组合物，其包含（i）可聚合单体，（ii）平均粒径为1至9μm的不规则形状的无机颗粒（A），并且含有粒径不小于10μm的颗粒不大于3重量％的量，例如二氧化硅 - 氧化锆不规则形颗粒，（iii）平均粒径为0.1-5μm的球形无机颗粒（B），如球形二氧化硅 - 氧化锆颗粒; （iv）平均粒径为0.01〜0.1μm的无机细颗粒（C），例如选自二氧化硅，氧化铝，二氧化硅 - 氧化锆和二氧化硅 - 二氧化钛的至少一种无机氧化物的细颗粒; 和（v）聚合引发剂; 其中所述不规则形状的无机颗粒（A），球形无机颗粒（B）和无机细颗粒（C）的使用量相对于每100重量份的可聚合单体为300至1900重量份，当将球形无机颗粒（B）和无机细颗粒（C）的总量设定为100重量％时，球形无机颗粒（B）以50至99重量％的比例使用，和无机微粒（C）的使用比例为50〜1重量％，不规则形状的无机粒子（A）的重量比[（A）/ {（B）+（C）}] ）相对于球形无机颗粒（B）和无机微粒（C）的总量为0.3〜3，聚合引发剂的使用量为每100重量份的0.01-5重量份可聚合单体。

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